package com.itheima.homework.test4;

import java.util.Scanner;

public interface RedRay {
    public abstract void controlTV(TV tv);
    public default void connecting(){
        System.out.println("外接设备,连接成功,可以使用红外线");

    }
    public default void tishi(){

        System.out.println("请输入一个数字作为电视台的选择");
        Scanner sc = new Scanner(System.in);

    }

}
